package com.example.demo.DAO;


import com.example.demo.pojo.Department;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

//部门Dao
@Repository
public class DepartmentDao {
    private static Map<Integer, Department> departments = null;

    static{
        departments = new HashMap<Integer, Department>();//创建一个部门表
        departments.put(101,new Department(101,"营销部"));
        departments.put(102,new Department(102,"市场部"));
        departments.put(103,new Department(103,"财务部"));
        departments.put(104,new Department(104,"产品部"));
        departments.put(105,new Department(105,"维护部"));
    }

    //获得所有部门信息
    public Collection<Department> getDepartments(){
        return departments.values();
    }

    //通过id得到部门
    public Department getDepartmentById(Integer id){

        return departments.get(id);
    }

}
